31070 Exploration of frontal sinus
Also known as: frontal sinus exploration, external frontal approach, frontal sinusotomy
Surgical exploration of the frontal sinus via external approach with limited inspection and visualization of sinus cavity.
In Plain Language
forehead sinus surgery
Clinical Context
Open external exploration of frontal sinus for chronic disease or infection. External approach (Lynch incision) provides good visualization but involves external scar.
RVU Breakdown
| Work RVU | 4.29 |
| Total RVU | 4.29 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
As a surgical CPT code, proper documentation must include the operative report detailing the procedure performed, patient positioning, approach, findings, and any complications. This code has a 90-day global period, which includes the day of the procedure, 1 day preoperative, and 90 days of postoperative care. Ensure the diagnosis code (ICD-10) supports medical necessity for the procedure.
How This Code Compares
With a work RVU of 4.29, this code ranks in the 29th percentile among Surgery codes — 1.9x below the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 31070?
CPT 31070 (Exploration of frontal sinus) is a Surgery code. Surgical exploration of the frontal sinus via external approach with limited inspection and visualization of sinus cavity.
What is the wRVU value for CPT 31070?
The work RVU for CPT 31070 is 4.29. This code is primarily used by Otolaryngology, Rhinology. It has a 90-day global period.
When is CPT 31070 used?
Open external exploration of frontal sinus for chronic disease or infection. External approach (Lynch incision) provides good visualization but involves external scar.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.